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Two white lights set at forty-five degrees.
Also known as: Two white lights signal, Diagonal light signal
A British ground signal showing two white lights on a diagonal to authorise a shunting movement.
Authorises a shunting movement when its two lights stand on a diagonal.
Contexts: Public information
Carries its meaning in the angle of the lights rather than in their colour, which is why it remains readable to a driver who cannot distinguish red from green.
Contexts: Public information
Two lamps lit together on a diagonal rising to the right, with a third lamp lit horizontally with one of them when the signal is on.